A very clear and interesting piece about histamine intolerance can be found at allergynutrition.com. I especcially like the picture, that shows how the threshold can get passed, as a bucket model. The bucket slowly fills up with histamine until it streams over, and symptoms come into existence.

Histamine Factsheet at AllergyNutrition.com
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I really appreciate the terrific information you are sharing on your blog about histamine intolerance. I have trouble with high histamine foods too. Look forward to your future posts.
has anyone had a skin reaction to histamines? i am 49 , have had rosacea for over a year and am slowly tracking it down to histamines in my diet. There is very little offered as a cure, only pills and potions pushed by every one, particularly the scared medical industry. i have been “almost” a vegan for 30 years, very conscious of my diet. Have found that my favorite foods, bananas, berries, grapes, and now it seems potatoes are terrific offenders. any one with any words of experience, i would be grateful your input. thanks, lucy
I get an ‘overnight attack’ of breakouts of hives, rashes, edemas, itching that breaks the skin to bleeding. It always comes with wheat, barley or rye injestion. Never fails to take me over my histamine threshhold!
Antihistamines have been my only saving blessing but they raise my blood pressure when having to layer to attack ever higher reaching threshholds.
At some point, I have to stop. NOW I can.
My USA doctor is the first person to have told me about this.
P.S. My sister was diagnosed by elimination of other things with Celiacs. Her kiddos have Type III IgG and IgE positive results too.
My mother’s rheumatic conditions are similar to mine, ideopathic and complex but said to be mild.
I’d love for a doctor to explain why my spine, ribs and sternum feel like they are squeezed to death, cause so much pain that I’d like to die for relief if I could, and make me feel like I cannot breathe and like I am having a constant heart attack combined with an asthma attack–except I am not.
Diagnosed with 25 rheumatic disorders and the cause is ideopathic.
I don’t think so anymore, and I think we know the cause.
Hello there. My name is Justine, and I am a registered dietitian undertaking a year of diet experimentation. The first diet I am attempting to undergo is a histamine-restricted diet. The whole point of the experiment is to gain dietetic empathy while simultaneously gauging whether or not I have a certain intolerance. I have a number of strange symptoms and am convinced they are somehow related to my diet. I am glad that you have taken it upon yourself to create this blog for mutual sufferers and curious peeps like me alike. I would appreciate any tips you might have about following a histamine-restricted diet and invite you to visit my blog if you’ve any interest: http://www.thehungryguineapig.wordpress.com.
I have been surfing the web for 5 days in order to find a connection between histamine, SAO enzyme and vitamine B6, and finally I found your blog – thank you, it’s great to find someone who is on the same path! I have been diagnosed prurigo nodularis just a few months back. Doctors say there is no cure but I refuse to believe;) I am convinced that it has a similar background with histamine intolerance. I have a few questions to you but I need to do it another day, it’s getting late!
Oh, my! I have been diagnosed with so many ideopathic rheumatic and allergy issues and told it’s my imagination so many times by doctors not running full labs or testing for IgG or Type III tests….. Thank you for such comprehensive information and links!
I have a panel of doctors working with me to look at the data.
Thank you!!!!